Suppose you want to estimate the proportion of cars that are sport utility vehicles (SUVs) being driven in Kansas City, Missouri, at rush hour by standing on the corner of I-70 and I-470 and counting SUVs. You believe the figure is no higher than 0.40. If you want the error of the confidence interval to be no greater than .03, how many cars should you randomly sample? Use a 90% level of confidence.

An engineer designed a valve that will regulate water pressure on an automobile engine. The engineer designed the valve such that it would produce a mean pressure of 7.2 pounds/square inch. It is believed that the valve performs above the specifications. The valve was tested on 290 engines and the mean pressure was 7.3 pounds/square inch. Assume the standard deviation is known to be 0.6. A level of significance of 0.02 will be used. Determine the decision rule. Enter the decision rule.

Exercise SA-5 (Algo) Least-Squares Regression (LO5-11 George Caloz & Frères, located in Grenchen, Switzerland, makes luxury custom watches in small lots. One of the company's products, a platinum diving watch, goes through an etching process. The company has recorded etching costs as follows over the last six weeks: Week 1 2 3 4 Units 14 11 16 10 12 15 78 Total Etching Cost $ 27 20 30 20 25 28 $150 For planning purposes, management would like to know the variable etching cost per unit and the total fixed etching cost per week. Exercise 5A-5 Part 2 (Algo) 2-a. Using the least-squares regression method, estimate the variable etching cost per unit and the total fixed etching cost per week. 2-b. Express these estimates in the form Y = a + bx.

In November 2023, a certified investment property appraiser was hired to appraise the value of a 72,000 square foot Safeway anchored neighborhood shopping center in Fremont, California that was last sold in 2014 to a foreign investment company based in the Cayman Islands for $26 million. The November 2023 appraised value represents the: a. Actual market value of that property b. Actual purchase price of that property c. Actual replacement cost of that property d. Actual opinion of value by that appraiser